[...]

 80900K .......... .......... .......... .......... .......... 99% 15.1M 0s
 80950K .......... .......... .......... .......... .......... 99% 3.98M 0s
 81000K .......... .......... .......... .......... .......... 99% 31.2M 0s
 81050K .......... .......... ..                              100% 27.4M=7.8s
2015-08-11 09:41:01 (10.1 MB/s) - 'linux-4.1.tar.xz' saved [83017828/83017828]
--2015-08-11 09:41:02--  http://df.tld-linux.org/distfiles/by-md5/7/9/79d9a168b73d91544c15b3b77221528a/patch-4.1.5.xz
Resolving df.tld-linux.org (df.tld-linux.org)... 46.4.78.55
Connecting to df.tld-linux.org (df.tld-linux.org)|46.4.78.55|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 170056 (166K) [application/x-xz]
Saving to: 'patch-4.1.5.xz'
     0K .......... .......... .......... .......... .......... 30% 1.77M 0s
    50K .......... .......... .......... .......... .......... 60% 3.96M 0s
   100K .......... .......... .......... .......... .......... 90% 10.8M 0s
   150K .......... ......                                     100% 12.7M=0.05s
2015-08-11 09:41:02 (3.55 MB/s) - 'patch-4.1.5.xz' saved [170056/170056]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/kernel-4.1-grsecurity-4.1.5-1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
Already on 'master'
WARNING! Spec name (kernel-grsecurity) does not agree with package name (kernel-4.1-grsecurity)
No conditional flags passed
from available:
--with   :	 pax verbose
--without:	 doc source
Writing git revision for tag auto/ti/kernel-4.1-grsecurity-4.1.5-1
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.35904
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf kernel-4.1-grsecurity-4.1.5
Begin-PLD-Builder-Info
Build-Time: user:29.11s sys:7.17s real:113.45s (faults io:17 non-io:523049)
Files queued for ftp:
  84995909 kernel-4.1-grsecurity-4.1.5-1.src.rpm
       199 kernel-4.1-grsecurity-4.1.5-1.src.rpm.uploadinfo
End-PLD-Builder-Info